Lukas Henkel @QVHenkel
All things 3D | Rendering | Simulation | Electronics | StartUp Fürth, Deutschland Joined October 2021-
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When I'm working with flex PCBs I'm really grateful for the sheet metal module in my CAD tool 😄 Makes it very easy to bend, modify and unwrap into a 2D DXF file that I can use for PCB design.
Oh, so you want to use our delicately folded display assembly, which will break very easily if you don't adhere to the bending and assembly tolerances? Sure, use this drawing as a high-resolution PNG, good luck! 🫡 PS: I know this is not uncommon it nonetheless annoying 😅
Pyrolytic graphite sheets have a thermal conductivity of up to 1800 W/mK. It would seem that this could be used as an effective way of removing heat from a planar transformer and dissipating it into the surrounding copper planes. Even better would be to use a combination of…
For the design of the SiP I'll be using 80um laser VIAs with 200um pads. This will allow me to design in 300um pitch WLCSPs. One picture shows a comparison between a 0.4mm 325pin footprint and a 400pin BGA with 0.8mm pitch. Actually seeing the difference in person makes me a bit…
Sometimes a leadframe is all that’s needed for signal isolation😄Sometimes a leadframe is all that’s needed for signal isolation. While the coupling factor of this type of implementation will be low and the susceptibility to external fields high, the coupling capacitance is also…
The backlight panel from a broken screen comes in handy for inspecting the solderpaste stencil between prints
I'm doing some comparisons of different planar transformer cores. While the shown core type is the most cost-effective choice, the fact that the centerleg is not pulled back from the edges and therefore the windings are not covered by the core, it performs worst in terms of…
It seems that the bot situation here has gotten so bad that sometimes the only option is to turn off comments altogether. If you see any of my posts with a locked comment section, this is the reason.
I'll be designing an open source system-in-package for an upcoming project. The module will be based around an NXP i.MX8 ULP and will include the SoC/DRAM/eMMC and PMIC.
What you can see here is an unnecessary visual representation of where I have a short on my board😄 For sensitive PCBs where I don’t want to inject high currents to see which component lights up under a thermal camera (or low resistance short circuits) I usually apply a small…
BVTKnodes for Blender allows using predefined or arbitrary geometry as stream tracer source to visualize magnetic fields
Many ferrite beads are surprisingly susceptible to external magnetic fields. Even laminated ferrite beads can easily couple noise for example from a nearby switching regulator into the net that they are meant to filter. I recently observed this problem with a low noise design…
We are continuing our journey through the Pi.MX8 Project. In this update we focus on schematic design and initial preparation for PCB layout. You can even follow this project on our public workspace. Dive in and learn to prepare a project from scratch: bit.ly/3TOzQCD
The carbon polymer used for PCB switch contacts can also be used to some extent as a strain gauge. This method has its drawbacks in terms of accuracy and sensitivity, but with the right track geometry it's good enough to detect a hard button press for example.
The small strip that connects two boards in the Y-axis is really annoying to remove. I will use a larger distance between the boards again, even if the efficiency of the panel decreases somewhat.
In the past I've used a photoelasticity visualization setup to investigate clear plastic housings for LED lights I've designed. Recently I received a sample of gallium embedded in an acrylic cube. The acrylic cracked and the gallium flowed along the crack. I couldn't resist…
I'm currently working on a couple of concepts where SemiFlex might be a good option. I'm interested in trying out SemiFlex to see how reliable this approach is and how important it is to maintain the minimum bending radius during assembly. Perhaps a bending tool will be needed...
The remote sensing of the PMIC compensates ~19mV IR drop on the core voltage power plane of the PiMX8 module. That is at 5A and 35um copper thickness. I´m curious to see what that will be at 18u copper and high ambient temperature.
arturo182 @arturo182
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🌟𝘾𝙮𝙗𝙚�.. @MakeAugusta
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hackaday @hackaday
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Stargirl 🌠 @theavalkyrie
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2K Followers 483 Following ☪️️🇹🇷 (94:7) The moment you are freed of one task work on. https://t.co/PzsR520jve Z🤍I offer free support, at an equal level to the commitment of those receiving it. Willing to put the effort in? I'll put the effort in with you. Whatever it takes. Want me to do everything for you? Sure ... Please supply a billing address.
@QVHenkel That's a lot of sequential laminations. Are you snowmanning or offsetting the rest of them then? Can't quite dogbone those. It's so exciting when you have like 4 parts down in the beginning and you are already approaching 3k pins.
@QVHenkel You must really love via-in-pad's and microvia's!
@oakdevtech @robin7331 @QVHenkel So it was just a mistake! 🥳
@QVHenkel Following the footsteps with something simpler: 😄 x.com/aweirdphysicis…
Does anybody want to guess what to do next?
@QVHenkel Your renders are so good, I sometimes can't tell if it's a photo or a render! :)
This @kicad_pcb -> @Blender plugin by bobbe over at Mastodon is incredible! It allows you to import your KiCad design into Blender with textures, shaders, and even solder blobs in like 5 clicks! Now if only I had the slightest idea how to use Blender 😭 github.com/30350n/pcb2ble…
Will soon be available. ADI Jupiter SDR with 16 bit resolution, 50MHz IQ W, price about 1000 Euro.
Today is a good day for the funding of the development of open source FPGA gateware.
Seems like they are entering eggo phase, the nest is getting expanded tirelessly
I often get questions about my setup for taking macro shots, so I thought I'd finally do a short thread showing what I use. 🧵
The good thing about having a weird nerd coffee machine is that you can do weird nerd things to it because you get a whole detailed CAD model from the manufacturer
We are continuing our journey through the Pi.MX8 Project. In this update we focus on schematic design and initial preparation for PCB layout. You can even follow this project on our public workspace. Dive in and learn to prepare a project from scratch: bit.ly/3TOzQCD
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